Duster 4sp. 8.75 driveshaft needed

I'm looking for a driveshaft for my Duster i'll be running a small block with a 4 speed and 8.75 rear. I have a slip yoke so just need the shaft. Should measure 48.96 center to center. The driveshaft from any 108" A body Barracuda/Demon/Dart Sport should work as long as it's the same setup. Also needs to be 7260 u joint 2 1/8" yoke.